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Gathering pollen, air quality, and weather data for you.
Gathering pollen, air quality, and weather data for you.
Pollen Level
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Air Quality
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Weather
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Hamden's allergy season typically runs from March through October, with two distinct peaks. Tree pollen surges in spring, then ragweed takes over in late summer. Understanding these patterns helps residents of Hamden, CT plan outdoor activities and manage symptoms.
Right now: July sees grass pollen tapering off in Hamden, but humidity can boost mold spore counts indoors and out.
Spring
Mar – May
Oak, birch, and maple tree pollen peak. Highest risk in April–May.
Summer
May – Jul
Grass pollen dominates. Humid days can elevate mold spore counts.
Fall
Aug – Oct
Ragweed season. Second major peak for allergy sufferers.
Coastal breezes near Hamden can provide temporary relief, but spring nor'easters often redistribute pollen across wide areas. PollenTracker monitors these daily shifts so you know when it's safe to head outside.
Open another nearby forecast without going back to the map.
CAUTION
Grass pollen is moderate, air quality is fair (AQI 55). Conditions are moderate — most people will be fine with basic precautions.
Pollen: Grass pollen is medium today at 50 grains/m³.
Lower-risk hours: 11:00-13:00
Weather
88°F
Sunny · 55% humidity · 11 mph wind
~5 grains/m³
~5 grains/m³